Fig. 1

Phylogenetic relationship and gene structure of the G. arboreum and G. hirsutum PMEs. a A phylogenetic tree was constructed using MEGA 5.1 with the neighbor-joining (NJ) method with 1000 bootstrap replicates based on a multiple alignment of 135 amino acid sequences of PMEs from G. hirsutum. The eight major subfamilies are numbered I to VIII. b Exon/intron structure of PMEs from G. hirsutum. Exons and introns are represented by boxes and black lines, respectively. c A phylogenetic tree was constructed with MEGA 5.1 using the neighbor-joining (NJ) method with 1000 bootstrap replicates based on a multiple alignment of 80 amino acid sequences of PMEs from G. arboreum. The four major subfamilies are numbered I to IV. d Exon/intron structure of PMEs from G. arboreum. Exons and introns are represented by boxes and black lines, respectively